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Finding the Third Proportional to 20,908.13 and 45,258.75

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Solution

The third proportional to 20,908.13 and 45,258.75 is: 97,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.13 : 45,258.75 = 45,258.75 : x
  2. Step 2: Convert to fraction form
    20,908.13/45,258.75 = 45,258.75/x
  3. Step 3: Cross multiply
    20,908.13x = 45,258.75 × 45,258.75
  4. Step 4: Simplify right side
    20,908.13x = 2,048,354,451.56
  5. Step 5: Solve for x
    x = 2,048,354,451.56/20,908.13
  6. Step 6: Final answer
    x = 97,969.30

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.